No it seems they put you on a tiered plan as you are on the 2GB data plan. LTE, 4G or 3G.
This is what mine shows. I'm on AT&T and have nothing specifically about LTE data:
Image
Maybe next billing cycle?
OP, it seems that you could have been moved to a tiered plan based on your screen shot. Here is how mine looks:
What do you mean by a tiered plan??
What do you mean by a tiered plan??